I went to the Prodigy web site and looked at their catalog. They have a wiring harness specific to the 2015-15 Rams. 3020-P and from looking at the diagram it plugs into a socket under and to the left of the steering wheel - somewhere near the emergency brake area it looks like. The RAM OE controller plugs into a socket on the other side of the steering wheel. I wondering if one could just disconnect the OE and plug in the Prodigy and be good to go.
It appears that RAM does not have a fix for this issue and it has been ongoing for a few years from what I have researched.
Here is the link to the catalog
Prodigy 
